document.write( "Question 852944: Without using a calculator (answer in radical form and rationalizing the denominator, if necessary), evaluate the following:\r
\n" ); document.write( "\n" ); document.write( "(a) cot 225(degree)\r
\n" ); document.write( "\n" ); document.write( "(b)tan(-pi/4)\r
\n" ); document.write( "\n" ); document.write( "(c)cos 495(degree)\r
\n" ); document.write( "\n" ); document.write( "(d)sec 225(degree)\r
\n" ); document.write( "\n" ); document.write( "(e) cot 30(degree)\r
\n" ); document.write( "\n" ); document.write( "(f) sin pi\r
\n" ); document.write( "\n" ); document.write( "I really need help with this. Please!
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #513778 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
\n" );
document.write( "Hi,
\n" );
document.write( "Using the (cosx,sinx) summary below for reference:
\n" );
document.write( "(a) cot 225(degree) = cos225/sin225 = 1
\n" );
document.write( " (b)tan(-π/4) = -tan π/4  = -sin π/4/cos π/4= -1
\n" );
document.write( " (c)cos 495(degree) = cos 135 = 
\n" );
document.write( " (d)sec 225(degree) = 1/cos225 =  
\n" );
document.write( " (e) cot 30(degree) = cos30/sin30 = 
\n" );
document.write( " (f) sin pi = 0\r
\n" );
document.write( "\n" );
document.write( "\n" );
document.write( "

\n" );